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A. H. LOWELL.v

Heating Stove.

Patented July 2,1867.

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Letters Patent No. 66,365, dated July 2, I867.

h r SOAPSTONE STOVE.

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Be it known that I, ALBION H. LOWELL, of Manchester, in the county of Hillsboro, and State of New Hampshire, have invented certain improvements in Soapstone Stoves, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings making part of this; specification, in Which- Figure 1 is a. perspective view of my improved soapstone stove. Figure 2 is a vertical section through the centre of the same. Figure 3 is a horizontal section of the same on the line z a: of fig. 2. Soapstone stoves for burning coal, as heretofore constructed, have been provided with a lining of fire-brick extending as usual up" to about the level of the bottom of the door. The non-conducting properties of this lining, however, caused the heat to beimparted very slowly to the outer casing of soapstone below the top of the lining, in consequence of which the only portion of the stove available for throwing out heat was that above the top of the lining. I My invention has for its object to overcome this objection and prevent the waste of the heat, and consists l in placing within the casing of soapstone ametallic fire-pot, of cylindrical or other suitable form, an air space L being left between the two, andsuitab le openings being formed near the bottom of the stove to admit the external air into contact with the lower portion of the fire-pot to prevent it from being destroyed by the heat by which construction the heat radiated from the outer surface of thefire-pot is imparted directly to the soapstone casing below as well as above the door, thus causing the heat to be thrown out from the entire surface of the stove, instead of from only a portion, as heretofore. l

To enable others skilled in the art to understand and use my invention, I will proceed to descrihe the manner in which I have carried it out. l

In the said drawings A is the base of the stove, and B B the outer casing, which is formed of plates of soapstone held together and in their proper position by the rings or bands at, which are .grooved, as seen in fig 2, to receive the ends of the plates. Within the soapstone casing B B is fitted a cylinder or fire-pot, O, n ofcast or wrought iron, which extends up from the grate D to the top of the casing B, and is covered with a circular plate of soapstone, E. The diameter of the cylinder'C is such as to leave an air space, 01, between it and the outer casing, through which the heated air passes up and thence out into the apartment. If desired the stove may be surmounted with a perforated metallic top of ornamental construction. By thus placing a metallic fire pot within a soapstone casing, the heat radiated from the surface of the former is imparted directly to the latter, thus rapidly heating up the whole stove, and causing it 'to radiateheat from its entire surface, advantages which it has been impossible to secure in soapstone stoves as heretofore constructed. The fire-pot C, instead of being made cylindrical as shown, may be of any other suitable form, its size being such as to leave an air space between it and the outer casing. In order to prevent the lower portion of the fire-pot from beingburned out anddestroyed, cold air is admitted at or near the bottom of the stove through narrow slits or openings 0, thus preventing'it from becoming heated to 'too great an extent, the air as it becomes heated passing up through the space d, as before described. The openings e are formed by connecting the bands 6 together, and with the base A, by supports e, by which they are held at the required distance apart. f are doors which maybe opened to admit a greater supply of air, or for warming the feet, which may be placed on the rests g. F is the door throughwhich the fuel is passed, and G the smoke pipe leading to the flue or chimney. When the stove is to be used for burning coal :1. cast-iron fire-pot should be employed, but for burning wood a fire-pot constructed of sheet iron will be found to answer best. i

Claim 0 What I claim as my invention, and desire to secure by Letters Patent, isy 1 A metallic fire-pot, C, in' combination with an outer casing of soapstone placed at such a distance as to leave an air space between the two, suitable openings 0 being provided at or near the bottom of the stove to admit cold air to the lower portion of the fire-pot, all constructed and operating substantially as and for the purpose set forth. v I

I also claim the soapstone casing B B held together by a series of bands at I), the latter, Z1, being so constructed and arranged as to leave openings 0 for the admission of air, substantially as and for the purpose set forth. v

' ALBION H. LOWELL.

i Witnesses:

G. A. SULLOWAY, 7 JOHN S. WHEELER. 

